API tap water conditioner treatment removes toxins from tap water instantly, so you can add fish to your aquarium (or add them back after a water change) immediately. It dechlorinates aquarium and tap water, detoxifies heavy metals, and may be used in both fresh and salt water. Tap water must be treated before adding fish to make sure fish remain healthy. Super-strength water conditioner. Instantly removes chlorine and neutralizes chloramines. Also detoxifies heavy metals in tap water. Requires only one... A super effective water conditioning solution that works to safeguard standard tap water from harbouring harmful levels or chlorine and nitrite. The solution should be added directly to water when setting up a new aquarium or adding further tap water. Will also detoxify metals to protect your fish from illness.